Jiangmen. Jiangmen, located in the northwest of the Pearl River Delta, is one of the important cities in Guangdong Province. Rich in water and mineral resources, it is an important base for manufacturing and heavy industry. Jiangmen City is also one of the core cities of China Nanhai Economic Zone, with a relatively complete modern industrial system and industrial chain, including key industries such as steel, machinery, chemicals and building materials. Chaozhou, located in the eastern coastal area of Guangdong Province, is a famous historical and cultural city. Chaozhou economy is dominated by agriculture and industry, among which ceramics, olive oil and clothing are more developed.